Thread: Need Advice!!

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You are probably going to get advice not to use the tunnel ram on the street because they are really designed for high RPM usage, but I understand why you are wanting to do it. We all sometimes add parts for the "look" factor even though we realize they are not perfect. I ran two 500 CFM edelbrocks on the 302 in my '27, even though I knew a single would have been better, but I wanted two fours. I even ran straight, non-progressive linkage, and it ran fine.

If they still make the 390 CFM carbs, these would be closest to the ideal CFM's for a typical 350 Chevy, but you probably will end up with 500's, as they are more cost effective, I think. After I dial in the 350 in my T with the single carb, I am going to put two fours on it, simply because I think a hot rod needs multiple carbs to complete the look. That's just me.

BTW, tunnel rams are a little more peaky than a lowriser two four setup, but with a little playing you can get them to operate reasonably well. No question however that they will never be as smooth as one well matched carb.

Don